Charlie Sheen feels “ashamed” of his lacklustre live performance in Detroit, Michigan on Saturday night but he is adamant his ongoing tour is a “learning process” and he will continue working on his material until he finds the winning formula. The troubled actor took to the stage in the city for the first night of his My Violent Torpedo of Truth/Death is Not an Option shows, but the event was marred by boos and walk-outs as he failed to impress fans with his material.

Sheen reworked large parts of the show for his second night in Chicago, Illinois and won a standing ovation from the audience.

The former Two and a Half Men star has now conceded the production was not perfect when he hit the stage in Detroit and he will continue to “adjust” his set as the tour continues.

He has also revealed one of his crew members asked whether he wanted to cancel his second date after his disastrous performance in Detroit, but Sheen decided to go ahead with the Chicago show and spend the bus drive working on his material.

He tells E! Online, “I just got back to basics. Gotta go with what got you to the dance and give the people what they want. On the bus someone said, ‘You know, we could just keep driving to L.A.’ I said, ‘F**k that. That’s what losers do. I won.'”

He also tells Wgntv.com he will continue changing his show until he gets it right: “A couple (of) things we have to adjust, but we’re excited. After that Detroit thing, we should be ashamed. It’s a learning process.”